基于两幅视图的纵向插补方法

Method of longitudinal interpolation based on two views

目前,纵向移动视点的多视图插补仍然是高质量漫游系统的一个难点问题。为大家熟知的进入式漫游(TIP)由于采用单幅图像放大的方法造成图像分辨率下降,而多幅图像分别构造TIP模型的方法在漫游过程中存在着明显跳跃的不足。基于两幅视图的纵向插补方法在获得摄像机中心处于同一条直线上的两幅图像后,用平面射影变换求对应的射影区域;然后利用这两幅图像的焦距关系,计算边缘点的空间位置;最后利用边缘点确定射影区域的空间位置和像素RGB值。实验证明该算法简单,容易实现,漫游效果平滑。

Recently,the multi-view interpolation of longitudinal moving viewpoint is all the same a difficult problem in the part of high quality virtual tourism system.As we all know,the resolution ratio of view in the system of walk-through navigation will be reduced because of zooming out a single image,and yet the method of respectively constructing TIP model for multi-image will present disadvantage of obviously discontinuousness during navigating.The method of longitudinal interpolation based on two views will acquire corresponding projection areas using the plane projection transform after gained two views whose camera center points are in the same line.Then the space location of edge points are searched using the focus relation of the two views.With these corresponding edge points,the space location of projection areas and RGB value of pixes are determined in the end.This algorithm is simple and easy to realize which has been proved by experiments,and the effect of navigating is smooth.